Porvoo weather in July

In July, Porvoo sees average daytime highs of 22°C and overnight lows near 13°C, with 68 mm of rain across 11.2 wet days and about 17.8 hours of daylight. It is the 1st-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 21°C in the first days to 23°C by the end. The sky is clear or mostly clear about 22% of the time in July, and the air most often feels dry.

Daylight stretches from about 18 h 30 min at the start of July to 16 h 48 min by month's end. Set against the rest of the year, July is Porvoo's 2nd-clearest and 12th-windiest month. For the whole year in context, see Porvoo's year-round climate.

Daytime high
22°
1st warmest
Overnight low
13°
12th coldest
Rainfall
68 mm
11.2 wet days
Daylight
17 h 54 min
3:27 AM – 9:19 PM
Cloud cover
62%
2nd clearest
Wind
11 km/h
12th windiest
Solar energy
5.34 kWh/m²
Travel score
6.4
out of 10

Porvoo is urban area in Porvoo, Finland.

Air quality
Good
PM10 16.6 µg/m³ · 2016

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 21°C in the first days to 23°C by the end.

A typical July day in Porvoo reaches about 22°C in the afternoon and slips back to 13°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 28°C. Set against its neighbours, July runs about 3°C warmer than June and about 1°C warmer than August.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12112
22112
32112
42112
52112
62112
72213
82213
92213
102213
112213
122213
132213
142213
152213
162213
172213
182213
192213
202313
212313
222313
232313
242313
252313
262313
272313
282313
292313
302313
312313

How July really feels in Porvoo

Once humidity and wind are folded in, July averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

July sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Porvoo weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-2° / -7°4510.710.56.30.0
Feb-2° / -8°3998.98.60.0
Mar / -5°368.57.411.30.0
Apr / 368.82.314.21.7
May15° / 459.40.116.84.8
Jun19° / 10°7111.9018.55.8
Jul22° / 13°6811.2017.86.4
Aug21° / 12°6511.7015.46.1
Sep15° / 519.9012.64.5
Oct / 5510.40.89.71.4
Nov / -1°5410.94.77.10.0
Dec-0° / -4°5311.79.35.50.0

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 21% of July, with mostly cloudy or overcast conditions the remaining 57%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14258
24258
34357
44357
54357
64357
74456
84555
94555
104555
114456
124456
134456
144357
154456
164456
174357
184357
194456
204357
214357
224456
234456
244357
254357
264357
274357
284357
294258
304258
314258

Chance of precipitation in July

Any precipitation

Porvoo gets around 68 mm of rain over 11.2 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 37% and peaks near 41% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
141
240
340
439
539
639
738
838
938
1038
1138
1238
1338
1438
1537
1637
1737
1837
1936
2036
2135
2235
2335
2434
2534
2634
2733
2833
2933
3033
3133

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

Most of July feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, July lands in the dry band about 60% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1781840
2771940
3762040
4742150
5722251
6702451
7692551
8682651
9662761
10652861
11642961
12633061
13613171
14603271
15583372
16583372
17563482
18563482
19553582
20543592
21543592
22533593
235235103
245235103
255235103
265235103
275135113
285135113
295235103
305335102
315335102

Wind in July

Winds average 11 km/h in July, the calmest month.

Across July, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 18 h 30 min at the start of July to 16 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 102 minutes over July. Sunrise moves from 3:05 AM to 3:59 AM, and sunset from 9:36 PM to 8:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
118.53:059:36
218.53:069:36
318.53:079:35
418.43:089:34
518.43:099:33
618.43:119:33
718.33:129:32
818.33:139:30
918.23:159:29
1018.23:169:28
1118.13:189:27
1218.13:209:25
1318.03:219:24
1418.03:239:22
1517.93:259:21
1617.93:279:19
1717.83:299:17
1817.73:319:16
1917.73:339:14
2017.63:359:12
2117.53:379:10
2217.53:399:08
2317.43:419:06
2417.33:439:04
2517.33:469:01
2617.23:488:59
2717.13:508:57
2817.03:528:55
2917.03:558:52
3016.93:578:50
3116.83:598:48

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.34 kWh/m².

For context, solar energy here swings from a low near 0.14 kWh/m² to a high of 5.57 kWh/m² in June across the year — July's 5.34 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.4Bright
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.2Bright
225.2Bright
235.2Bright
245.1Bright
255.1Bright
265.1Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
314.9Bright
Planning a trip in July

Is July a good time to visit Porvoo?

Our two travel scores rate July for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.4
Sightseeing
1st-best month of the year
4.5
Beach & pool
1st-best month of the year

July is a reasonable time to visit Porvoo for sightseeing.

What to pack for Porvoo in July

From July's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In July, Porvoo sees daytime highs around 22°C and nights near 13°C. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

Sea temperature near Porvoo in July

The nearest coast averages about 16°C in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 30 km away) is warmest in August at about 17°C and coldest in March near 1°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan2Bracing
Feb1Bracing
Mar1Bracing
Apr2Bracing
May6Bracing
Jun12Bracing
Jul16Cool
Aug17Cool
Sep15Bracing
Oct10Bracing
Nov7Bracing
Dec4Bracing

UV index in Porvoo in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Porvoo peaks around June 18 at about 5 (high) — a little sun protection helps at midday. It bottoms out near January 1 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 4 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateModerateLowJun 18UV 5Jan 1UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Low
Apr3Moderate
May4Moderate
Jun5High
Jul5Moderate
Aug4Moderate
Sep2Moderate
Oct1Low
Nov0Low
Dec0Low
Location & terrain

Where is Porvoo?

Porvoo sits at 60.4°N, 25.7°E, 29 m above sea level, in Finland. The nearest listed city is Sibbo, 22 km away.

Topography around Porvoo

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Porvoo.

Within 3 km, the terrain around Porvoo has only modest variations in elevation — a maximum elevation change of 58 m around an average of 20 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 98 m; within 80 km, only modest variations in elevation — a maximum elevation change of 226 m.

The land around Porvoo is covered by trees (51%) and artificial surfaces (22%) within 3 km, trees (61%) within 16 km, and trees (43%) and water (42%) within 80 km.

3 km
58 m
16 km
98 m
80 km
226 m
treesgrasslandcroplandartificial surfaceswaterwetland
July weather nearby: Sibbo 22 km · Kerava 31 km · Järvenpää 33 km · Mäntsälä 33 km · Tuusula 35 km · Vuosaari 35 km · Mellunkylä 36 km · Vantaa 36 km

Finland travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 85% of US
price level, 2025
GDP per capita
$56,149
2025
Happiness
7.8 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
1
per 100k, 2023
Road deaths
3.9
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 603
Religion
Lutheran 67%none 31%other 2%Greek Orthodox 1%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Porvoo (60.3923°, 25.6651°, elevation 29 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).